Benefits of 40/100G in Submarine Systems M. Nissov, A. Pilipetskii, - - PowerPoint PPT Presentation

▶
benefits of 40 100g in submarine systems
SMART_READER_LITE
LIVE PREVIEW

Benefits of 40/100G in Submarine Systems M. Nissov, A. Pilipetskii, - - PowerPoint PPT Presentation

Dec 06, 2022 370 likes •528 views

conference & convention enabling the next generation of networks & services Benefits of 40/100G in Submarine Systems M. Nissov, A. Pilipetskii, Q. Zhong, C. Breverman, G. Valvo, B. Jander, and N. S. Bergano Tyco Electronics Subsea

slide-1
SLIDE 1 enabling the next generation of networks & services

conference & convention

Benefits of 40/100G in Submarine Systems

  • M. Nissov, A. Pilipetskii, Q. Zhong,
  • C. Breverman, G. Valvo, B. Jander,

and N. S. Bergano

Tyco Electronics Subsea Communications

slide-2
SLIDE 2 enabling the next generation of networks & services

conference & convention

Presenter Profile

Morten Nissov is presently the Director of 40/100G Product Management at SubCom. He has worked for SubCom since 1998, first as an Engineer (1998-2000) and then as Director Applied Research (2000-2009). as Director Applied Research (2000-2009). He received his MS and PhD degrees from the Technical University of Denmark in 1994 and 1998, respectively, and his MBA from New York University, Stern School of Business, in 2009. Morten Nissov Director 40/100G Product Magement Email: mnissov@subcom.com Tel: (+1) 732-578-7587

slide-3
SLIDE 3 enabling the next generation of networks & services

conference & convention

Contents

  • Introduction
  • Motivation for Higher Data Rates
  • Necessary Trade-offs
  • Necessary Trade-offs
  • Outlook
  • Conclusion
slide-4
SLIDE 4 enabling the next generation of networks & services

conference & convention

Introduction

  • 10G technology prevalent but 40G technology seriously

being considered

– 40G technology might have reached turning point

  • Benefits

– Primary: increased capacity and reduced cost per bit – Primary: increased capacity and reduced cost per bit – Secondary: floor space and power consumption

  • N x 10G muxponders allow the benefits to be enjoyed

also for 10G client traffic

  • Trade-offs associated with higher data rates is the topic
  • f this talk
slide-5
SLIDE 5 enabling the next generation of networks & services

conference & convention

Capacity and Cost Drive Demand

  • Increased capacity

– Better amortizes cost of construction of a new cable system – Increases value (and economic life) of legacy systems – Enablers: modulation formats, signal processing

  • Reduced cost per bit

– Reduces cost of upgrades – Improves competitiveness – Lowers operating expenses – Enablers: more bits share cost of equipment

slide-6
SLIDE 6 enabling the next generation of networks & services

conference & convention

Illustration of Potential 2-5x Capacity Increase

  • Capacity increase

– 40G DPSK: 2x – 100G DP-QPSK: 5x

  • Optimized design to

maximize capacity

Capacity comparison of 10G DPSK, 40G DPSK, and 100G DP-QPSK

10G maximize capacity

  • Depends on specifics for

legacy systems

  • Capacity might actually

decrease on most challenging systems 100G DP-QPSK 40G DPSK 10G

slide-7
SLIDE 7 enabling the next generation of networks & services

conference & convention

Change of Data Rate Can Happen Quickly

50 60 month 2.5G 10G

Change from 2.5G technology to 10G technology

  • After 10G

availability interest disappeared in 2.5G

10 20 30 40 Feb- 99 Aug- 99 Feb- 00 Aug- 00 Feb- 01 Aug- 01 Feb- 02 Aug- 02 Feb- 03 Aug- 03 Transponders per mo

  • Only legacy

upgrades left for 2.5G after 2000

slide-8
SLIDE 8 enabling the next generation of networks & services

conference & convention

Higher Data Rates Provide Savings over System Life

  • Substantial savings for

both traffic scenarios

– Years to full load

  • Large: 10 years

Life time savings of 40G direct detection system compared to 10G system

gs

40G: larger traffic needs 40G: smaller traffic needs

  • Large: 10 years
  • Small: 20 years
  • Assumptions

– Same ultimate capacity – 40G provide terminal savings

  • Savings much larger for

high capacity systems

System Reach Lifetime Savings

10G references 40G: smaller traffic needs Regional Trans-Pacific Trans-Atlantic

slide-9
SLIDE 9 enabling the next generation of networks & services

conference & convention

Flexible Client Interfaces Protects Investment

  • Client interface preference expected to change

– SDH Ethernet, OTN, OTNe – 10G client traffic 40G 100G

  • Solution
  • Solution

– Reconfigurable multi-protocol clients – Replaceable client modules to accommodate Muxponder and Transponder application – Also simplifies sparing

  • Flexibility is needed to safeguard equipment investment
slide-10
SLIDE 10 enabling the next generation of networks & services

conference & convention

Higher Data Rates Need Better OSNR

  • 10G equipment well
  • ptimized
  • Necessary OSNR

improvement by

– Shorter repeater spacing

Shortened repeater spacing can provide the OSNR necessary for increased data rates

Increase

– Shorter repeater spacing – Lower loss and larger effective area fiber – Increased repeater power

  • All increases wet plant

cost

– Trade-off with terminal savings – 40G system might carry premium

System Reach Repeater Count Inc

Regional Trans-Pacific Trans-Atlantic

slide-11
SLIDE 11 enabling the next generation of networks & services

conference & convention

Different Modulation Formats Have Different Advantages

  • Prior, single terminal

product for all lengths

  • Present 10G generation

– OOK

Many choices of modulation formats each with distinctive advantage

SE=40% 80% 120% 200%

Pacific

SE=40% 80% 120% 200%

Pacific

– DPSK

  • 40/100G also need to

provide different modulation formats

  • Cost-Reach-Capacity

trade-off

RZ-DBPSK RZ- DQPSK Dual-RZ- DBPSK OPDM-RZ- DBPSK DP-QPSK (40G) DP-QPSK (100G)

Complexity Distance

Regional Pa Atlantic

RZ-DBPSK RZ- DQPSK Dual-RZ- DBPSK OPDM-RZ- DBPSK DP-QPSK (40G) DP-QPSK (100G)

Complexity Distance

Regional Pa Atlantic
slide-12
SLIDE 12 enabling the next generation of networks & services

conference & convention

Coherent Transmission Holds Great Promise

  • Coherent sensitive to

nonlinear impairments

  • Optimized designs

unlock potential

Only large effective

Coherent transmission can be substantially improved by optimized design

1 2 3 (dB)

Optimized for coherent

1 2 3 (dB) 1 2 3 (dB)

Optimized for coherent

– Only large effective area positive fiber (no DFF) – Only supports coherent transponders

  • Initial applications

– 100G Regional – 40G Transoceanic

  • 2
  • 1

1

  • 2

2 4 6 Relative Launch Power (dB) Delta Q (dB

Legacy

  • 2
  • 1

1

  • 2

2 4 6 Relative Launch Power (dB) Delta Q (dB

  • 2
  • 1

1

  • 2

2 4 6 Relative Launch Power (dB) Delta Q (dB

Legacy

slide-13
SLIDE 13 enabling the next generation of networks & services

conference & convention

Conclusion

  • Submarine market has reached turning point

– 40G (and selective use of 100G) will add significant value – Enabling capacity increases and lifetime cost reductions

  • Direct detection provides all the benefits on present

system designs

– Upgrades of long legacy systems – Upgrades of long legacy systems – New DFF systems

  • Full coherent benefit only achieved on D+ only systems
  • 10G optimization might provide lowest initial cost

– But could preclude operating at higher data rates

  • Client flexibility facilitates the transition from the data

rates and protocols of today to those of tomorrow

slide-14
SLIDE 14

2010

enabling the next generation of networks & services

conference & convention

Pacifico Convention Plaza Yokohama & InterContinental The Grand Yokohama 11 ~ 14 May 2010 www.suboptic.org The 7th International Conference & Convention

  • n Undersea Telecommunications